Sorry for this very basic question. I am rather a user than a developer.

preambleI had been using my C2 together with the ( provided by hardkernel?) Ubuntu Mate for a while.At some point months ago, the browser stopped using the MALI graphics acceleration, and beside that, the 8GB eMMC was pretty crowded by the OS leaving no space for programs. Hence, at this point I had given up using the C2.

Time for revitalisation!I'm looking for a lightweight UBUNTU derivative, which runs on the C2, and after installation leaves sufficient space on the 8GB eMMC for programs. Which may I choose?

We are building Ubuntu 18.04 image for ODROID-XU4 series now.We may need a few weeks to settle down some known/unknown issues.If there is no serious issue, we will start to port it for C2/C1 series in May.So you might need to wait several weeks to play with Ubuntu 18.04 on your C2.